Thyroid Profile Interpreter (TSH, T3, T4)
A thyroid profile measures TSH along with T3 and T4 to check how your thyroid gland is working. Enter your values to understand them. Typical adult ranges: TSH 0.4–4.0 mIU/L, Free T4 0.8–1.8 ng/dL, Free T3 2.3–4.2 pg/mL — though pregnancy and labs shift these. A high TSH usually suggests an underactive thyroid (hypothyroidism); a low TSH suggests an overactive one.
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Frequently asked questions
What does a high TSH mean?+
A high TSH usually means an underactive thyroid (hypothyroidism) — the pituitary is working harder to stimulate a sluggish gland. Symptoms can include tiredness, weight gain, cold intolerance and dry skin. Your doctor will confirm with T4 and may start thyroxine.
What does a low TSH mean?+
A low TSH usually means an overactive thyroid (hyperthyroidism), often with raised T3/T4. Symptoms can include weight loss, palpitations, heat intolerance and anxiety. It needs medical evaluation to find the cause.
Is a slightly abnormal TSH always a problem?+
Not always. Mildly abnormal TSH (subclinical) with normal T4 may just need monitoring rather than treatment. Pregnancy, illness and some medicines also shift TSH. Always interpret it with a doctor.
How does the blood test interpreter work?+
Enter the values from your lab report and the tool explains what each marker means in plain language, flags which results are outside the typical reference range, and suggests questions to ask your doctor. It is an educational aid, not a diagnosis.
Are these reference ranges accurate for India?+
The ranges shown are typical adult values, but every lab prints its own reference range on your report — and ranges differ by age, sex, pregnancy and testing method. Always read your result against the range printed on your own report.
Can I rely on this instead of seeing a doctor?+
No. The interpreter helps you understand your report, but blood results must be read alongside your symptoms, history and examination. An abnormal value is not automatically a diagnosis, and a normal panel doesn't rule everything out. Always confirm with a doctor.
Can I book the test or a doctor through PingMeDoc?+
Yes. You can book lab tests with free home sample collection and consult a doctor online through PingMeDoc to review your report and plan next steps.